:root {
  --ink: #1b1f24;
  --muted: #5b6573;
  --navy: #1f3a5f;
  --navy-dark: #162b47;
  --line: #dde3eb;
  --surface: #ffffff;
  --surface-alt: #f4f6f9;
  --cut-bg: #ffc7ce;
  --cut-ink: #9c0006;
  --ok: #2e7d32;
  --radius: 6px;
  --wrap: 1120px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); background: var(--surface); font-size: 1.0625rem; line-height: 1.6; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.2; color: var(--navy); margin: 0 0 0.75rem; }
h1 { font-size: clamp(2rem, 4.5vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.0625rem; }
p { margin: 0 0 1rem; }
code { font-size: 0.9em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 760px; }
.center { text-align: center; }

.config-notice { background: #fff4ce; color: #5c4300; text-align: center; padding: 0.5rem 1rem; font-size: 0.875rem; }

.site-header { border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.5rem; }
.wordmark { font-weight: 700; color: var(--navy); }

.btn {
  display: inline-block; background: var(--navy); color: #fff; text-decoration: none; font-weight: 600;
  padding: 0.875rem 1.5rem; border-radius: var(--radius); border: 0; cursor: pointer;
  transition: background-color 0.15s ease;
}
.btn:hover { background: var(--navy-dark); }
.btn:focus-visible { outline: 3px solid #8fb3e0; outline-offset: 2px; }
.btn[aria-disabled="true"] { cursor: not-allowed; }
.btn-small { padding: 0.5rem 0.875rem; font-size: 0.875rem; }
.btn-block { display: block; text-align: center; }

.hero { padding: 3.5rem 0 3rem; }
.hero-grid { display: grid; gap: 2.5rem; }
.hero-copy { max-width: 46rem; }
.eyebrow { color: var(--muted); font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.75rem; }
.lead { font-size: 1.1875rem; color: #333c48; max-width: 40rem; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem; margin-top: 1.5rem; }
.cta-note { color: var(--muted); font-size: 0.875rem; }

.shot { margin: 0 0 2.5rem; }
.shot a { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.shot a:focus-visible { outline: 3px solid #8fb3e0; outline-offset: 2px; }
.shot figcaption { color: var(--muted); font-size: 0.875rem; margin-top: 0.625rem; }
.shot-narrow { max-width: 760px; }
.hero-shot { margin: 0; }

.section { padding: 4rem 0; }
.section-alt { background: var(--surface-alt); }
.section-intro { color: var(--muted); margin-bottom: 1.75rem; }

.example { border-left: 4px solid var(--navy); background: var(--surface-alt); padding: 1rem 1.25rem; border-radius: 0 var(--radius) var(--radius) 0; margin-top: 1.5rem; }
.example p:last-child { margin: 0; }
.example-label { font-size: 0.8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 0.375rem; }
.tag { display: inline-block; font-size: 0.8125rem; font-weight: 700; padding: 0.05rem 0.5rem; border-radius: 4px; }
.tag-cut { background: var(--cut-bg); color: var(--cut-ink); }

.calc-list { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 1.5rem 2rem; }
.calc-list li { border-top: 2px solid var(--navy); padding-top: 0.875rem; }
.calc-list p { color: #3b4552; margin: 0; font-size: 1rem; }

.steps { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 1.5rem 2rem; }
.steps li { position: relative; padding-left: 3rem; }
.step-num { position: absolute; left: 0; top: 0; width: 2rem; height: 2rem; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 0.9375rem; }
.steps p { margin: 0; color: #3b4552; font-size: 1rem; }

.two-col { display: grid; gap: 2.5rem; align-items: start; }
.checks { list-style: none; padding: 0; margin: 0 0 1rem; }
.checks li { position: relative; padding-left: 1.75rem; margin-bottom: 0.5rem; }
.checks li::before { content: ""; position: absolute; left: 0.25rem; top: 0.45em; width: 0.5rem; height: 0.85rem; border: solid var(--ok); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.buy-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; background: #fff; }
.price { margin: 1.25rem 0 1rem; }
.price-amount { font-size: 2.5rem; font-weight: 700; color: var(--navy); }
.price-term { color: var(--muted); }
.fine { color: var(--muted); font-size: 0.875rem; margin: 0.75rem 0 0; text-align: center; }

.plain { padding-left: 1.25rem; margin: 0; }
.plain li { margin-bottom: 0.625rem; }

details { border-bottom: 1px solid var(--line); padding: 0.25rem 0; }
details:first-of-type { border-top: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; padding: 0.875rem 0; color: var(--navy); }
summary:focus-visible { outline: 3px solid #8fb3e0; outline-offset: 2px; }
details p { color: #3b4552; }

.final-cta { padding: 4rem 0; background: var(--navy); }
.final-cta h2 { color: #fff; margin-bottom: 1.5rem; }
.final-cta .btn { background: #fff; color: var(--navy); }
.final-cta .btn:hover { background: #e8eef6; }
.final-cta .cta-note { color: #c9d6e8; display: block; margin-top: 0.875rem; }

.site-footer { padding: 2rem 0; color: var(--muted); font-size: 0.8125rem; border-top: 1px solid var(--line); }
.site-footer p { margin: 0; }

@media (min-width: 720px) {
  .calc-list { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .steps li { padding-left: 0; padding-top: 3rem; }
  .two-col { grid-template-columns: 1.2fr 1fr; }
}
@media (min-width: 1000px) {
  .calc-list { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 420px) {
  .header-inner .wordmark { font-size: 0.9375rem; }
  .btn-small { padding: 0.45rem 0.625rem; }
}
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}